I think 0.6.0rc1 broke my blk0001.dat, blkindex.dat or something else not located in .bitcoin/ (is there something else?)When I get home I will also delete these files. (I have a 170190+ blockchain here that I will try first, before downloading the whole thing again)

I thought this too.. but mine did recover after ~5 min after installing rc2.

I gave it another hour, but it didn't recover. I copied the blockchain files from another machine and now it works.

Well, I hate to do it, but I just pulled my 2GH/s from P2Pool. Something is very seriously wrong. I have been keeping it up to date, so don't tell me it's me version of p2pool or bitcoin, it's not. Over the last 4 days I have watched my payout per block drop from around 0.4 to 0.15 on the last one, and p2pool.info is showing 950MH/s. I will come back, but after what ever the hell is broken is fixed.

Were you getting more orphaned or dead shares, or was the number of shares that you got decreasing?

No, everything local stayed the same. Orphaned/dead stayed around 5% overall, still cranking out shares about every 25 minutes, nothing here reporting errors anywhere. Just a steady decrease in hashrate shown at p2pool.info and a steady decline in payout values. It's like over 50% of my hashrate/shares are leaving my end, but aren't making it into the chain.

I just did a fresh install of Bitcoin 0.6.0r2 and p2pool on the server and re-downloaded the chains on both of them, going to give it until tomorrow morning to see if that fixed it, if not, i have to pull out back to a pool until the problem is located.

Seems like a fresh install and re-downloading of both chains fixed whatever was going on. While i would like to get to the bottom of whatever caused this, I will be making no attempt to replicate it, sorry.

I was thinking it would be cool if p2pool.info listed how much has been donated as subsidies. Maybe that could be added into the luck calculation, too.

I updated p2pool.info to include a list of donations/subsidy payments. I decided not to include them in the luck calculation.

I detect these transactions by looking for any transaction that includes payments to 10 or more known p2pool miner addresses (I have a list of basically all the addresses that have ever submitted a share). I think this is a pretty robust approach as long as there aren't any donations that go to less than 10 people. If that ever happens and someone lets me know, I can manually add that transaction to the list.

JSON API

It may not have been obvious, but the way that p2pool.info actually works is that all of the things you see on the web page are rendered in your local browser with client-side, javascript code. The web page gets all the data it uses via a series of ajax requests to retrieve JSON data from the p2pool.info web server.

On the chance that someone may find something interesting to do with the JSON data, I decided to CORS enable them. So feel free to use this data to make awesome things. Please to not make a zillion requests to my web server though, because while I can easily scale out to handle more load (yay, Cloud!), I don't want to have to do so just for the JSON API because it costs me money. If these APIs get abused, I'll have to remove access to them.

I've been P2Pool mining for a week now with about 600MH/s. So far so good. However, I'm trying to understand something. I keep a running tail on my log file to see the shares I get and blocks found. Today, there were two blocks found which I did not get any shares during the round. However, my bitcoin client shows income under "Mined" at the precise time those blocks were found. I thought I only get paid for shares I find and if a block is found that I didn't find a share, I would receive no payment on it. Looks like I'm wrong. Can anyone clarify and set me straight?

I've been P2Pool mining for a week now with about 600MH/s. So far so good. However, I'm trying to understand something. I keep a running tail on my log file to see the shares I get and blocks found. Today, there were two blocks found which I did not get any shares during the round. However, my bitcoin client shows income under "Mined" at the precise time those blocks were found. I thought I only get paid for shares I find and if a block is found that I didn't find a share, I would receive no payment on it. Looks like I'm wrong. Can anyone clarify and set me straight?

P2Pool uses the PPLNS payment scheme. Every time a block is found, the previous "N" shares get paid. N is 3 times the number of shares needed to find a block on average. At the moment, N=7546.

Note, all of the past N shares get paid even if they were submitted before a previous block was found. Yes, that means that a single share can result in you getting paid for multiple blocks. In fact, on average, you should get paid for 3 blocks for every share that you find. When we are lucky, you'll get paid in more than 3 blocks. When we are unlucky, you'll get paid for fewer.

Have your bitcoind downloaded the entire blockchain? Because until it does P2Pool will keep spitting this message out. When I restart my P2Pool machine it always says this for a little bit until bitcoind syncs up the blockchain again. The first time can take a long time, I believe it took almost a day to download the whole blockchain again.